Fig. 4

Genomic locus and global analysis of the Gerris buenoi opsin gene repertoire. a Structure of the scaffold containing the four G. buenoi long wavelength (LWS) opsins. b Retinal opsin repertoires of key hemipteran species and reconstructed opsin subfamily loss and expansion events along the hemipteran phylogeny. c Comparison of amino acid residues at the four tuning sites identified in the LWS opsins of Lepidoptera [68, 69]. Site numbers based on [68]. Numbers in parentheses are experimentally determined sensitivity maxima. Species abbreviations: Amel = Apis mellifera, Dmel = Drosophila melanogaster, Gbue = Gerris buenoi, Gbim = Gryllus bimaculatus, Larc = Limenitis archippus, Lart = Limenitis arthemis astyanax